144 Volt Rick - I have checked my speakers this weekend and sadly I have the OEM papery speakers on my Japanese system, including rear speakers. Given the importance nearly everyone on the forum places on changing the speakers, I now feel duty bound to change my speakers. (Any excuse!).
I have looked around on the web in the UK and Eclipse speakers are not sold here. However I have found your Infinity speakers - Model 655, 60W RMS and £40 ($63) but I am concerned about the depth of them and the fact that they have four square screw holes, rather than three triangular ones.
Therefore I am more tempted by Pioneer's Model TS-G1746 which although they are only 35W RMS, they are £25 ($39), shallow basket and have triangular screw holes. Remember I have to get two pairs.
Does anyone know what the wattage of the OEM speakers are? Would the Pioneers actually be any more powerful? How easy is it to fit the square screw holed speakers such as Infinities? Presumably I am right in looking for 6.5" speakers? I would be grateful for advice.